Tonight’s episode of The Vampire Diaries will feature Twilight‘s Charlie Bewley as a new Hunter. Ian Somerhalder teases the threat he poses to Damon.

The Vampire Diaries returns tonight with episode 4×15 “Down the Rabbit Hole.” While Elena, Stefan and Rebekah search for Shane (who has captured Bonnie and Jeremy), Damon will find himself confronted with Vaughn, one of the five Hunters – played by Charlie Bewley.

Speaking to TV Guide, Somerhalder spills on how much danger Damon is actually in this week:

“Vaughn poses a pretty substantial threat. He’s a formidable adversary,” Somerhalder says. And as we can see from the promotional pictures, it looks like he’s more than a match for Damon. “Damon would be an extremely difficult man to get tied up to a tree,” Somerhalder admits, “so the fact that he’s there means Vaughn knows what he’s doing.”

The video also features Joseph Morgan, who teases Klaus’ role in the episode. “Klaus has got some knowledge which will come in handy in attempts to translate the code on the Hunter’s sword,” he says, “so there will be a whole new [dynamic] where they need something from him, which he enjoys … especially with Caroline, to make her feel like she needs him. That’s part of the game for him.”

The Vampire Diaries 4×15 “Down the Rabbit Hole” airs tonight at 8/7c on The CW.